[DESIGN] Change font color of hyperlinks to something other than black

[bskinn]

Right now, on Labs site all (or nearly all) hyperlinks are formatted with an underline, but in the color black.

Perhaps these should be, e.g., Quansight plum?

[bskinn]

What do you think, @irinafumarel?

[irinafumarel]

@bskinn Agree! The QS plum or violet would look great